I installed Ubuntu 7.04 (Fesity Fawn) today and installed the nvidia-glx package as well. There also seems to be a nvidia-gkx-new package, but it both requires and conflicts with nvidia-glx. meh. The current package works great with beryl (no more Copy method=increased framerate).
Next, I need to get my wireless working. Manually installing ndiswrapper was a nightmare – it failed for reasons i don’t know – so I’m going to try the packages from the repos now. 
Feisty seems to come with a version of compiz 
but the window decoration is broken – I must need cgwd – not that I really care at this stage as beryl works fine and the beryl-compiz merge doesn’t seem to be very far along.
[edit] CGWD is included, I just had to enable it, Heliodor also works with compiz but not beryl, but it’s the one from the beryl repositories, explain that! [/edit]
Finally, there was some problem with the audio that adding this to /etc/modprobe.d/alsa-base:
# Added according to tips from launchpad.net.
options snd-hda-intel model=3stack
seemed to fix. [edit] It didn’t actually fix the problem so I’m going to google around for a solution [/edit]